OP, it depends on what type toppers you like whether it will be "worth it". If you like tanks, clearos, RTAs, carto tanks it will be a nice device for you. It's probably the best built regulated mod out there. On the other hand, if you find yourself preferring a dripper to other toppers you'd be better off with a bottom feeder type device. With a device like the REO you can have the benefits of a dripper without having to carry around the bottle & drip into it constantly.
if you're going to go for a high end, good quality device I would suggest thinking about how & what you like to vape before deciding. Don't let anyone here convince you to get a Provari just because it's a good quality device. While that is true, it doesn't necessarily mean it's the right device for YOU.